nuclear@0: #ifndef CURVE_H_
nuclear@0: #define CURVE_H_
nuclear@0: 
nuclear@0: #include <vector>
nuclear@0: #include <vmath/vmath.h>
nuclear@0: 
nuclear@0: enum CurveType {
nuclear@0: 	CURVE_LINEAR,
nuclear@0: 	CURVE_HERMITE,
nuclear@0: 	CURVE_BSPLINE
nuclear@0: };
nuclear@0: 
nuclear@0: class Curve {
nuclear@0: private:
nuclear@0: 	std::vector<Vector3> cp;
nuclear@0: 	CurveType type;
nuclear@0: 
nuclear@0: public:
nuclear@0: 	Curve(CurveType type = CURVE_HERMITE);
nuclear@0: 
nuclear@0: 	void set_type(CurveType type);
nuclear@0: 	CurveType get_type() const;
nuclear@0: 
nuclear@0: 	void add_point(const Vector2 &p, float weight = 1.0f);
nuclear@0: 	bool remove_point(int idx);
nuclear@0: 
nuclear@0: 	int nearest_point(const Vector2 &p);
nuclear@0: 
nuclear@2: 	bool empty() const;
nuclear@2: 	int size() const;
nuclear@2: 	Vector3 &operator [](int idx);
nuclear@2: 	const Vector3 &operator [](int idx) const;
nuclear@2: 
nuclear@0: 	const Vector3 &get_homo_point(int idx) const;	// homogeneous point
nuclear@0: 	Vector2 get_point(int idx) const;
nuclear@0: 	float get_weight(int idx) const;
nuclear@0: 
nuclear@0: 	bool set_point(int idx, const Vector2 &p, float weight = 1.0f);
nuclear@0: 	bool set_weight(int idx, float weight);
nuclear@2: 	// move point without changing its weight
nuclear@2: 	bool move_point(int idx, const Vector2 &p);
nuclear@0: 
nuclear@0: 	Vector2 interpolate(float t, CurveType type) const;
nuclear@0: 	Vector2 interpolate(float t) const;
nuclear@0: 	Vector2 operator ()(float t) const;
nuclear@0: };
nuclear@0: 
nuclear@0: #endif	// CURVE_H_